Training for High-Altitude Cycling in the Pyrenees

Cycling at altitude in the Pyrenees presents unique challenges. With climbs reaching above 2,000 metres, the thin air means less oxygen, harder efforts, and slower recovery. Here's how to prepare your body for the demands of high-altitude climbing.

Build Your Base

Before tackling the big cols, build a solid aerobic base. Long, steady rides at conversational pace will develop the endurance you need for multi-hour climbs. Aim for at least 8-12 weeks of consistent training before your Pyrenees trip.

Train for Power

Mountain climbing requires sustained power output. Include interval sessions in your training: 4x8 minute efforts at threshold, or 5x5 minute VO2 max intervals. Hill repeats are ideal — find a local climb and do repeated ascents.

Acclimatise

If possible, arrive in the Pyrenees a few days before your big climbs. Your body needs time to adapt to the altitude. Start with easier rides and gradually progress to the bigger cols. Stay hydrated and listen to your body.